Finding the Third Proportional to 19,437.75 and 42,387.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,437.75 : 42,387.75 = 42,387.75 : x
2. Step 2: Convert to fraction form
   19,437.75/42,387.75 = 42,387.75/x
3. Step 3: Cross multiply
   19,437.75x = 42,387.75 × 42,387.75
4. Step 4: Simplify right side
   19,437.75x = 1,796,721,350.06
5. Step 5: Solve for x
   x = 1,796,721,350.06/19,437.75
6. Step 6: Final answer
   x = 92,434.64